ZXCT1012 Datasheet, PDF (1/10 Pages) Zetex Semiconductors – Reduced height micro-power current monitor

ZXCT1012
Reduced height micro-power current monitor
Description
The ZXCT1012 is a high side current sense
monitor. Using this type of device eliminates
the need to disrupt the ground plane when
sensing a load current.
The ZXCT1012 takes the voltage developed
across a small value resistor and translates it
into a proportional output current. A user
defined output resistor scales the output
current into a ground referenced voltage.
The ZXCT1012 has the accuracy specification of
the ZXCT1010 but in TSOT23-5, and TDFN3x3-5.
Features
• 2.5V to 20V supply range
• 3.5µA quiescent current
• Current output - user set gain
• Thin package - TSOT23-5 and TDFN3x3-5
• Temperature range -40 to 85°C
Pin connections
A minimum operating current of just 3.5µA,
combined with its TSOT23-5 package make it
suitable for portable battery equipment where
size and current consumption are critical.
The wide input voltage range down to as low as
2.5V make it suitable for a wide range of
applications requiring direct operation from a
battery.
Applications
• Battery fuel gauge
• Battery chargers
• Overcurrent monitor
• Power management
Applications circuit
SENSE-
IN
SENSE
OUT
SENSE+
TSOT23-5
Pinout - top view
NC ³
4 SENSE-
GND ²
OUT ¹
5 SENSE+
TDFN3x3-5
Pinout - bottom view
SENSE+
SENSE-
ZXCT1012
OUT
OUT
OUT
LOAD
Ordering information
Device
Package
Status
ZXCT1012DAATA TDFN-5 (3mm x 3mm) Active
ZXCT1012ET5TA
TSOT23-5
Active
Device
marking
1012
1012
Reel size Tape width
(inches) (mm)
7
8
7
8
Quantity
per reel
3000
3000
Issue 1 - December 2006
1
© Zetex Semiconductors plc 2006
www.zetex.com